/*
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 */
package storymotion.photo;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.SQLException;
import java.text.SimpleDateFormat;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author Leonardo Oliveira Moreira
 */
public class PhotoQuery extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/xml;charset=UTF-8");

        String xml = "";
        xml += "<result>";

        PrintWriter out = response.getWriter();

        String keyword = request.getParameter("keyword");

        PhotoDAO photoDAO = null;

        try {
            if (keyword == null || keyword.trim().length() == 0) {
                throw new SQLException();
            }

            photoDAO = new PhotoDAO();
            List<PhotoUser> result = photoDAO.getPhotosByKeyword(keyword);
            if (result != null && result.size() > 0) {
                xml += "<photos>";
                SimpleDateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss");
                for (PhotoUser pu : result) {
                    xml += "<photo>";
                    xml += "<id>" + pu.getId() + "</id>";
                    xml += "<name>" + pu.getName() + "</name>";
                    xml += "<extension>" + pu.getExtension() + "</extension>";
                    xml += "<date>" + dateFormat.format(pu.getDate()) + "</date>";
                    xml += "<user_id>" + pu.getUserId() + "</user_id>";
                    xml += "<user_name>" + pu.getOwner().getName() + "</user_name>";
                    xml += "</photo>";
                }
                xml += "</photos>";
            }
            photoDAO.commit();
            xml += "<success>true</success>";
            xml += "<message>Success</message>";
        } catch (SQLException ex) {
            xml += "<success>false</success>";
            xml += "<message>" + ex.getMessage() + "</message>";
            if (photoDAO != null) {
                try {
                    photoDAO.rollback();
                } catch (SQLException ex1) {
                }
            }
        }

        xml += "</result>";
        out.println(xml);
        System.out.println(xml);
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
